环氧树脂对低熔点PA6结构与性能的影响  

Effect of EP on the Structure and Properties of Low Melting Point PA6

作　　者：甘华华[1,2] 杨诗润[1,2] 王彩红[2] 于杰[2] 鲁圣军[1,2] 

机构地区：[1]贵州大学材料科学与冶金工程学院,贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵阳550014

出　　处：《塑料工业》2013年第3期60-63,共4页China Plastics Industry

基　　金：贵州省自然科学基金项目(黔科合J字[2012]2123号);贵阳市工业振兴科技计划项目([2012101]2-11)

摘　　要：采用熔融挤出的方法,制备环氧树脂(EP)/CaCl2/尼龙6(PA6)复合材料,研究了不同EP含量对EP/CaCl2/PA6复合材料的结晶熔融行为及性能的影响。结果表明:EP的加入一方面破坏了体系中Ca+与酰胺基团络合配位作用,另一方面,环氧基团与PA6的端氨基及端羧基反应,PA6的摩尔质量局部增大,结晶末端受限。随着EP含量的增加,EP/CaCl2/PA6复合材料熔融温度及结晶度逐渐降低。适量的EP能对PA6起到很好的扩链作用,使得复合材料的多项性能均大幅度提高。复合材料的透光率随EP的增加略有降低,在EP含量9份时透光率仍能达到60.6%,透明性良好。The EP/CaClJPA6 composites were prepared through melting extrusion. Effect of different contents of EP on the crystalline melting behavior and performance of EP/CaC12/PA6 was studied. The results showed that, the coordination of Ca ~ and amide groups was undermined by EP, on the other hand, the molecular weight of PA6 increased by the reaction between epoxy-group and amino-group or carboxyl. The melting point and crystallinity of PA6/CaC1JEP composites decreased when the content of EP was increased. EP played a good role of chain extender on PA6 when the amount was little. So some PA6 composite materials with good properties . Light transmittance of the composite material was slightly reduced with the increasing of EP, when EP content was 9 phr, the transmittance rate can reach at 60.6%, which showed good transparency.

关 键 词：低熔点尼龙 环氧树脂 结构 性能 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]